Admittedly, stealing bushes sounds like it could be fun. He's stolen all the knives on his person after all, and that gave him enough of a thrill to try it a few time. But more to the point...

"Told you I don't garden." He plucks another pastry off of the plate, like they're miniature sized and he hasn't already eaten six of them. "I don't know if you picked up on this, but I'm a soldier." It's subtle, really. "Not much for me to do in a place like this."